Quantitative Spectroscopy of Local Group Supergiants

  • N. Przybilla
  • A. Kaufer
  • K. A. Venn
  • R. P. Kudritzki
  • D. J. Lennon
  • J. K. McCarthy
Conference paper
Part of the ESO Astrophysics Symposia book series (ESO)

Abstract

High-resolution spectroscopy of luminous blue supergiants in Local Group galaxies has become feasible with the new generation of 8–10m class telescopes and dedicated instrumentation (VLT/UVES and Keck/HIRES). We present a (re)analysis of objects in NGC6822 and M 31 by non-LTE/LTE spectrum synthesis. Detailed stellar parameters, chemical abundances, stellar wind properties and reddening values of single stars in different galactic environments are obtained. This work is a case study for analyses of future observations with efficient multi-object facilities like FLAMES on the VLT that will allow an effective use of telescope time.

Keywords

Helium 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • N. Przybilla
    • 1
  • A. Kaufer
    • 2
  • K. A. Venn
    • 3
  • R. P. Kudritzki
    • 4
  • D. J. Lennon
    • 5
  • J. K. McCarthy
    • 6
  1. 1.Universitäts-Sternwarte MünchenMünchenGermany
  2. 2.European Southern ObservatorySantiagoChile
  3. 3.Macalester CollegeSt. PaulUSA
  4. 4.Institute for AstronomyHonoluluUSA
  5. 5.ING, Apartado de Correos 368Santa Cruz de La PalmaSpain
  6. 6.Palomar ObservatoryCalifornia Institute of TechnologyPasadenaUSA

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